Entering the GW Parkway from Spout Run in Arlington, VA is usually easy.
The problem comes with heavy traffic when everyone hits the brakes for the curve at the bottom of the hill. The traffic column compresses and any gap disappears. Throw a few tourists in the mix who think the "right lane ends" sign is referring to some other lane and things get dicey.
A guy in a sedan saw that I had no place to go and braked hard. He voluntarily increased his risk of collision to give me a margin of safety.
I will always be grateful for that.
"I'm a Fiddler Crab! It's Fiddler Crab season! Shoot me now! Shoot me now!"